Firstly, it is important to pay attention to the baby’s response and the condition of their urination. If the baby shows poor spirit response and less urination, it often indicates dehydration, which can be mild, moderate, or severe. Generally, mild to moderate dehydration can be treated with oral rehydration solutions, which include electrolytes replenishment. However, in cases of severe dehydration, which may suggest hypovolemic shock, emergency intravenous fluids are necessary to expand blood volume, and it is crucial to go to the hospital promptly. Additionally, oral probiotics like bifidobacteria can be administered to regulate the intestinal flora. Montmorillonite powder can also be given to protect the gastrointestinal mucosa and stop diarrhea. If bacterial infection is suspected to be the cause of diarrhea, appropriate antibiotics should be used to treat the infection, which can be administered orally or intravenously depending on the severity of the infection. Meanwhile, the baby's urination, spirit response, skin elasticity, and symptoms of dry mouth should be closely monitored to comprehensively evaluate the treatment effectiveness.